functionsince v0.0-927 clojure.core/trampolineEdit
(trampoline f)
(trampoline f & args)

Source docstring:
trampoline can be used to convert algorithms requiring mutual
recursion without stack consumption. Calls f with supplied args, if
any. If f returns a fn, calls that fn with no arguments, and
continues to repeat, until the return value is not a fn, then
returns that non-fn value. Note that if you want to return a fn as a
final value, you must wrap it in some data structure and unpack it
after trampoline returns.
Source code @ clojurescript:src/main/cljs/cljs/core.cljs
(defn trampoline
     (let [ret (f)]
       (if (fn? ret)
         (recur ret)
  ([f & args]
     (trampoline #(apply f args))))